* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #0058a3;
            --secondary-color: #ffcc00;
            --accent-color: #e10600;
            --dark-bg: #0a1f2e;
            --light-bg: #f5f7fa;
            --text-dark: #333;
            --text-light: #f0f0f0;
            --gray-border: #ddd;
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(to right, var(--secondary-color), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .search-form {
            display: flex;
            flex-grow: 0.4;
            max-width: 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #c10500;
        }
        .main-nav {
            background-color: rgba(10, 31, 46, 0.95);
            margin-top: 1rem;
            border-radius: 8px;
        }
        .nav-list {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            padding: 0.8rem;
        }
        .nav-item {
            margin: 0 1rem;
        }
        .nav-link {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            position: relative;
        }
        .nav-link:hover {
            background-color: var(--primary-color);
            color: var(--secondary-color);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--secondary-color);
            bottom: -5px;
            left: 50%;
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 80%;
            left: 10%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--secondary-color);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            margin-right: 0.5rem;
            color: #6c757d;
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
        }
        .breadcrumb-item a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
            min-height: 80vh;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 3px solid var(--primary-color);
        }
        .article-header h1 {
            font-size: 3.2rem;
            color: var(--dark-bg);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: #666;
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span i {
            margin-right: 0.5rem;
            color: var(--primary-color);
        }
        .content-section {
            margin-bottom: 3rem;
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .content-section:hover {
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transform: translateY(-5px);
        }
        h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--gray-border);
        }
        h3 {
            font-size: 2rem;
            color: var(--dark-bg);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.6rem;
            color: #555;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9db;
            padding: 1.5rem;
            border-left: 5px solid var(--secondary-color);
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2.5rem auto;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .link-card {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            border: 1px solid var(--gray-border);
            transition: var(--transition);
        }
        .link-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 88, 163, 0.15);
            border-color: var(--primary-color);
        }
        .link-card i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .link-card a {
            font-weight: 700;
            font-size: 1.2rem;
            display: block;
            margin-bottom: 0.5rem;
        }
        .link-card a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        .interactive-section {
            background-color: var(--light-bg);
            padding: 3rem;
            border-radius: 15px;
            margin: 3rem 0;
            border: 2px solid var(--gray-border);
        }
        .interactive-section h2 {
            text-align: center;
            color: var(--accent-color);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            max-width: 700px;
            margin: 2rem auto;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--dark-bg);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 15px;
            border: 2px solid var(--gray-border);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 88, 163, 0.2);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2.2rem;
            cursor: pointer;
            margin: 1rem 0;
        }
        .star-rating i {
            color: #ccc;
            transition: var(--transition);
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: var(--secondary-color);
        }
        .btn-submit {
            background: linear-gradient(to right, var(--primary-color), #0077cc);
            color: white;
            border: none;
            padding: 18px 30px;
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .btn-submit:hover {
            background: linear-gradient(to right, #004a8a, #0058a3);
            transform: scale(1.02);
            box-shadow: 0 8px 20px rgba(0, 88, 163, 0.3);
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: var(--secondary-color);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #2a4255;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #1a2e3f;
            padding: 1.2rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            text-align: center;
            font-weight: 600;
            border: 1px solid #2a4255;
        }
        friend-link:hover {
            background-color: #22374a;
            border-color: var(--primary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a4255;
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .article-header h1 {
                font-size: 2.8rem;
            }
            h2 {
                font-size: 2.2rem;
            }
            .content-section {
                padding: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1.5rem;
            }
            .search-form {
                width: 100%;
                max-width: 100%;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .main-nav {
                display: none;
                margin-top: 1rem;
                width: 100%;
            }
            .nav-list {
                flex-direction: column;
                align-items: center;
            }
            .nav-item {
                margin: 0.5rem 0;
                width: 100%;
                text-align: center;
            }
            .nav-active {
                display: block;
            }
            .article-header h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.7rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            .interactive-section {
                padding: 2rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 2rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: center;
                gap: 0.8rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }